[parisite]

Somebody needs to make one!!!!!!!!

It shouldn't be that hard, I mean seriously. A small electric motor on top, turning a cutting wheel and it shouldn't have to be very big either. Adjust it up or down to length like any normal die. It's not rocket science.
It should be just another step on a progressive press.

[Blue68f100]

Dillon has one already. It even has a hose for a shop vac to keep the chips away.

[Taurus 617 CCW]

I am in the process of setting up a case trimmer operation on a drill press. Forster has a drill press kit that enables the use of a drill press rather than buying a whole new setup. Much less expensive than the Dillon and not caliber specific. You can get an inexpensive tabletop drill press from Harbor Freight for around $70, $50 when they are on sale.

http://www.midwayusa.com/product/721759/forster-power-case-trimmer

http://www.harborfreight.com/5-speed-drill-press-38119.html

[dbarnhart]

http://www.youtube.com/watch?v=Snp6C7dbV3E&feature=player_embedded